CN206095021U - Finned pipe - Google Patents
Finned pipe Download PDFInfo
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- CN206095021U CN206095021U CN201620879609.5U CN201620879609U CN206095021U CN 206095021 U CN206095021 U CN 206095021U CN 201620879609 U CN201620879609 U CN 201620879609U CN 206095021 U CN206095021 U CN 206095021U
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- fin
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Abstract
In this application one kind finned pipe (100), including parent tube (1) and spiral winding and fin (2) of welding on parent tube (1), parent tube (1) adopts laser welding's mode to be connected with fin (2), parent tube (1) and fin (2) laser welding are formed with solution (3), laser beam (E) among the laser welding inclines to jet into along the position of parent tube (1) with fin (2) handing -over, have the ground welding that fin bottom and parent tube are level and smooth, no fold, the welding rate reaches 100% effect.
Description
Technical field
The application is related to art of heat transfer, specially a kind of finned tube, in manufacturing and design for finned tube.
Background technology
In prior art：
Finned tube 100 is formed by base tube 1 and the integration of fin 2.
Wherein, Chinese excellent MA theses full-text database, engineering science and technology II volume, the 02nd phase in 2008,2008 1
On the moon 15-2 months on the 16th was published, and was sponsored by Tsing-Hua University, and by academic magazine e-magazine, society edits and publishes.
Propose in this article, new laser welding theory, form finned tube 100, wherein, base tube 1 and fin 2 are adopted and divided
Body formula structure.
But use with processing specific, in this document, specific operation process be not described and open,
Lead to not the real processing for realizing finned tube 100.
In consideration of it, how to design a kind of finned tube, the defect in the presence of above-mentioned prior art is overcome, be this area skill
Art personnel technical problem urgently to be resolved hurrily.
The content of the invention
The application's aims to overcome that technical problem present in prior art, and provides a kind of finned tube.
The purpose of the application by following technical solution completing, a kind of finned tube, including base tube and spiral twine
Around and weld the fin on base tube, base tube is attached with fin by the way of laser welding, base tube and fin laser welding
Solution is formed with, the laser beam E in laser welding is inclined along the position that base tube and fin join and injected, smooths welding position
Corrugationless.
Angle as of the laser beam E along between base tube and fin is injected；Angle a is in zero degree in the range of 90 degree.
Base tube includes carbon steel, stainless steel, titanium or titanium alloy etc. using seamless metal pipe or welding metal pipe, material.
Fin adopts copper strips, carbon steel band, stainless steel band, titanium or titanium alloy band.
The height H of fin is not more than base tube radius.
The thickness B of fin is in the range of 0.1mm to 0.6mm.
The wall thickness d of base tube is in the range of 0.5mm to 3mm.
Solution is absorbed in the subsurface fusion penetration V of base tube 1 0.2, in the range of mm to 0.5mm.
The application compared with prior art, at least with following obvious advantage and effect：
1st, fin bottom portion and base tube are smoothly welded, and welding rate reaches 100%, make welding position smooth corrugationless.
Description of the drawings
Accompanying drawing described herein is used for providing further understanding of the present application, constitutes the part of the application, this Shen
Schematic description and description please does not constitute the improper restriction to the application for explaining the application.In the accompanying drawings：
Fig. 1 is the fin tube structure schematic diagram of the application.
Fig. 2 is the fabrication design schematic diagram of base tube and fin in the application.
Specific embodiment
To make purpose, technical scheme and the advantage of the application clearer, below in conjunction with the application specific embodiment and
Corresponding accompanying drawing is clearly and completely described to technical scheme.Obviously, described embodiment is only the application one
Section Example, rather than the embodiment of whole.Based on the embodiment in the application, those of ordinary skill in the art are not doing
Go out the every other embodiment obtained under the premise of creative work, belong to the scope of the application protection.
A kind of finned tube 100 described herein, including base tube 1 and spiral winding and the wing that is welded on base tube 1
Piece 2, base tube 1 is attached with fin 2 by the way of laser welding, and base tube 1 is formed with solution 3 with the laser welding of fin 2, is swashed
Laser beam E in photocoagulation is inclined along the position that base tube 1 and fin 2 join and injected；At least have fin bottom portion and base tube flat
Weld slidingly, corrugationless, welding rate reaches 100%, make the effect of the smooth corrugationless in welding position.
In the embodiment of the present application,
Shown in Fig. 1 ~ Fig. 2, a kind of finned tube 100, including base tube 1 and spiral winding and be welded on base tube 1
Fin 2, base tube 1 is attached with fin 2 by the way of laser welding, it is characterised in that：Base tube 1 and the Laser Welding of fin 2
Connect and be formed with solution 3, the laser beam E in laser welding is inclined along the position that base tube 1 and fin 2 join and injected.
Position in the embodiment of the present application, on the basis of the laser welding of prior art, along between base tube 1 and fin 2
Put and welded, so as to form a solution 3.Both are welded together the structure to form full weld using solution 3.
The first embodiment that solution 3 is formed：When the material melting point temperature of fin 2 is more than the material melting point temperature of base tube 1, it is somebody's turn to do
Solution 3 is formed by the molten base tubes 1 of laser beam E；
Now, fin 2 is absorbed under the surface of base tube 1, the main surfaces of directive base tube 1 of laser beam E, and then is formed between the two
The solution 3 of attachment structure.
The second embodiment that solution 3 is formed：When the material melting point temperature of fin 2 is less than the material melting point temperature of base tube 1, it is somebody's turn to do
Solution 3 is formed by the bottom of the molten fins 2 of laser beam E,
Now, the welding of fin 2 is on the surface of base tube 1.
The 3rd embodiment that solution 3 is formed：When the material melting point temperature of fin 2 is equal to the material melting point temperature of base tube 1, should
Solution 3 is formed by laser beam E is molten between the bottom of fin 2 and the surface of base tube 1, wherein, strip material melting point is not necessary to be less than base tube
Material melting point, can also now carry out soldering.
Now, mutually melt between the two.
In three of the above mode, laser beam E is injected in the position joined each along both, above-mentioned,
In the first embodiment that solution 3 is formed, laser beam E is partial to base tube 1 and is irradiated, preferably the table of molten base tube 1
Face.
In the second embodiment that solution 3 is formed, laser beam E is partial to the bottom of fin 2 and is irradiated, and preferably melts fin
2 bottom.
In the 3rd embodiment that solution 3 is formed, laser beam E irradiates in a balanced way along between base tube 1 and the bottom of fin 2, shape
Into mutually melting in a balanced way.
Wherein, during the first embodiment for being formed using solution 3, both syncretizing effects more preferably, and can utilize base tube 1
Surface accommodates to the fold that the lower limb of fin 2 is bent to form, and forms corrugationless.
Citing：Angle a between base tube 1 and fin 2 is 90 degree, then, laser beam E is partial to the surface of base tube 1, along two
45 degree of positions of person's bisector are downward-sloping, are when tilting to 30 degree, can carry out heat to the surface of base tube 1 along angle of inclination
It is molten.
In the embodiment of the present application,
Angle as of the laser beam E along between base tube 1 and fin 2 is injected, and laser beam E is arranged between base tube 1 and fin 2
And injected along between base tube 1 and fin 2, it is to avoid base tube 1 is interfered laser beam E with the edge of fin 2, affects weldering
Connect effect.
Wherein, between base tube 1 and fin 2 angle a in zero degree in the range of 90 degree.
Enter line tilt in the range of laser beam E angle a therebetween, and then welding forms solution 3 and makes both abundant
Engagement.
In the embodiment of the present application,
Base tube 1 is made using inclined hard metal material, and inclined hard metal material is stainless steel, titanium.
By the way of laser welding in this, by the regulation to laser beam E energy, can thoroughly change traditional handicraft
In, it is impossible to process the finned tube of inclined hard metal material.
In the embodiment of the present application,
Fin 2 adopts copper strips, stainless steel band, Ti Alloy Strip.
In the embodiment of the present application,
The height H of fin 2 is not less than 5mm.
Arranging height of the fin 2 in 5mm can sufficiently ensure that fin 2 has higher radiating effect.
In the embodiment of the present application,
The thickness B of fin 2 is in the range of 0.1mm to 0.5mm.
To ensure the intensity of fin 2, it is to avoid fin 2 occurs bending or work in-process deforms, therefore fin 2 is set
Thickness B is in the range of 0.1mm to 0.5mm.
Wherein, the thickness B of fin 2, in 0.3mm, is that one kind commonly uses state, and under the state, the intensity of fin 2 is most
Height, and with general applicability, radiating effect is preferable.
In the embodiment of the present application,
The wall thickness d of base tube 1 is in the range of 0.5mm to 3mm.
The space for accommodating is provided for solution 3, the wall thickness d minimum states of base tube 1 are in 0.5mm.
Wherein, when the diameter of base tube 1 increases or base tube 1 is using in particular surroundings, for example bear pressure it is larger when, base tube
1 wall thickness d can change in the range of 0.5mm to 3mm.
Wherein, when the wall thickness d of base tube 1 is 1mm, the pressure of the vapor boiling circulation in boiler can be born.Wall thickness d=
In the state of 1mm, with higher applicability and use range, the base tube 1 of universal use d=1mm sizes.
In the embodiment of the present application,
Solution 3 is absorbed in the subsurface fusion penetration V of base tube 1 0.2, in the range of mm to 0.5mm.
Fusion penetration V is depth of the bottom apart from the surface of base tube 1 for dissolving position.
For fully solution 3 is absorbed under the surface of base tube 1, using solution 3 connection between base tube 1 and the bottom of fin 2 is improved
Effect, according to the use state of base tube 1, and the wall thickness of base tube 1, fusion penetration V can be arranged on 0.2, the scope of mm to 0.5mm
It is interior.
Wherein, fusion penetration V is that 0.2, mm is the relatively thin state of the wall thickness of base tube 1.
Fusion penetration V is that 0.5mm is the thicker state of the wall thickness of base tube 1.
When the wall thickness of base tube 1 is 0.5mm, it is that 0.5mm is limiting condition to arrange fusion penetration V, and the effect that both merge is preferable.
But the requirement to laser beam E is higher.
Now, laser beam E presses close to base tube 1 in the state of 10 degree, to be fused.
In the embodiment of the present application,
The radius R of base tube 1 is not more than the height H of fin 2.
To avoid the radius R of base tube 1 excessive, cause the bottom of fin 2 when the bending spiraled is welded, cause fin 2
The fold produced when bottom bends, for corrugationless, and in order to improve Joint Properties between the two, therefore in design base tube
During the height H of 1 radius R and fin 2, the height H of fin 2 is not more than using the radius R of base tube 1, is the preferable number in test
According to.
On material：Laser welding finned tube realizes the high finned tube of the inclined hard metal material of the materials such as stainless steel, titanium and makes,
High fin refers generally to fin higher than 5mm).
On material, overall welding can be carried out with using the different materials of fin 2 and the material of base tube 1；Such as copper strips
And stainless steel tube, copper strips and titanium/titanium alloy tube；The thickness of fin 2 can accomplish 0.3mm according to different materials, and base tube thickness can
With thin to 1mm, the material cost of original welding finned tube can be greatlyd save.
In technique：
The smooth welding of fin bottom portion and base tube, corrugationless, welding rate reaches 100% absolutely.
Its structure is equal to the finned tube of overall rolling, and fin root and base tube have any gap invariably, therefore without heat
Resistance, and because of the vibrations during use fin and base tube will not be caused to depart from, air thermal resistance is directly produced, imitate heat exchange
It is very common in pipe with wound fin, plate finned tubes that rate declines this point, means in bracket and be easy in pipe with wound fin and plate finned tubes because making
Depart from fin and base tube with the vibration environment of time length and use occasion, produce air thermal resistance.
Need not wash by water as high-frequency welding in welding process, therefore weld part is not in that water divides in the case of a high temperature
Gas that solution is produced and the bubble that formed；These alveolate position later stages easy oxygen during the use of high frequency welded fin-tube
Change, be that fin and base tube depart from, produce air thermal resistance, affect service efficiency and life-span.
In shaping：
Fin spiral winding is simultaneously welded on base tube, and fusion penetration reaches the limiting altitude of 0.2-0.5mm. fins and is generally more than base
Pipe radius.
Embodiments herein is the foregoing is only, and, the title that parts are taken in the application can not also
Together, wherein finned tube 100, the title being not intended to limit in the application.To those skilled in the art, the application can have respectively
Plant change and change.All any modification, equivalent substitution and improvements made within the design of the application and principle etc., all should wrap
Within the scope of being contained in claims hereof.
Claims (8)
1. a kind of finned tube, including base tube（1）And spiral winding and weld base tube（1）On fin（2）, base tube（1）With wing
Piece（2）It is attached by the way of laser welding, it is characterised in that：Base tube（1）With fin（2）Laser welding is formed with solution
（3）, the laser beam in laser welding（E）Along base tube（1）With fin（2）The position of handing-over inclines and injects, and puts down welding position
Sliding corrugationless.
2. finned tube according to claim 1, it is characterised in that：Laser beam（E）Along base tube（1）With fin（2）Between
Angle（a）Inject；Angle（a）In zero degree in the range of 90 degree.
3. finned tube according to claim 1 and 2, it is characterised in that：Base tube（1）Using seamless metal pipe or welding gold
Category pipe, material includes carbon steel, stainless steel, titanium or titanium alloy.
4. finned tube according to claim 1 and 2, it is characterised in that：Fin（2）Using copper strips, carbon steel band, stainless steel
Band, titanium or titanium alloy band.
5. finned tube according to claim 1 and 2, it is characterised in that：Fin（2）Height（H）No more than base tube half
Footpath.
6. finned tube according to claim 1 and 2, it is characterised in that：Fin（2）Thickness（B）In 0.1mm extremely
In the range of 0.6mm.
7. finned tube according to claim 1 and 2, it is characterised in that：Base tube（1）Wall thickness（d）0.5mm's to 3mm
In the range of.
8. finned tube according to claim 1 and 2, it is characterised in that：Solution（3）It is absorbed in base tube（1）Subsurface fusion penetration
（V）0.2, in the range of mm to 0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620879609.5U CN206095021U (en) | 2016-08-15 | 2016-08-15 | Finned pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620879609.5U CN206095021U (en) | 2016-08-15 | 2016-08-15 | Finned pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206095021U true CN206095021U (en) | 2017-04-12 |
Family
ID=58467258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620879609.5U Active CN206095021U (en) | 2016-08-15 | 2016-08-15 | Finned pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206095021U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106440911A (en) * | 2016-08-15 | 2017-02-22 | 杭州菲德博管业有限公司 | Structure of finned tube |
| CN107919336A (en) * | 2017-11-13 | 2018-04-17 | 中国航空工业集团公司西安航空计算技术研究所 | Reinforced heat exchanger and method of a kind of integrated form from concussion |
| WO2022091113A1 (en) | 2020-10-27 | 2022-05-05 | Jhaveri Devang | Heat transfer equipment |
-
2016
- 2016-08-15 CN CN201620879609.5U patent/CN206095021U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106440911A (en) * | 2016-08-15 | 2017-02-22 | 杭州菲德博管业有限公司 | Structure of finned tube |
| CN107919336A (en) * | 2017-11-13 | 2018-04-17 | 中国航空工业集团公司西安航空计算技术研究所 | Reinforced heat exchanger and method of a kind of integrated form from concussion |
| WO2022091113A1 (en) | 2020-10-27 | 2022-05-05 | Jhaveri Devang | Heat transfer equipment |
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